Buenas tardes.
Estoy tratando de armar un sistema de riego para un lugar donde no hay electricidad, tengo casi todo los componentes.
Mi intención es activar una electrovalvula, dos días a la semana, y que funcione por una hora y media. Como todo debe de funcionar a baterías, estoy tratando de "ahorrar" energía.
Estoy usando un:
- ATmega328
- RTC DS3231
Tengo duda si la modificación de este código, si no es el día que voy a regar que se vuelva a dormir el arduino y que al siguiente día vuelva a checar el día.
#include <Wire.h>
#include <RTClibExtended.h>
#include <LowPower.h>
#define wakePin 2 //use interrupt 0 (pin 2) and run function wakeUp when pin 2 gets LOW
#define ledPin 13 //use arduino on-board led for indicating sleep or wakeup status
RTC_DS3231 RTC; //we are using the DS3231 RTC
//original
byte AlarmFlag = 0;
byte ledStatus = 1;
//-------------------------------------------------
void wakeUp() // here the interrupt is handled after wakeup
{
}
//------------------------------------------------------------
void setup() {
//Set pin D2 as INPUT for accepting the interrupt signal from DS3231
pinMode(wakePin, INPUT);
//switch-on the on-board led for 1 second for indicating that the sketch is ok and running
pinMode(ledPin, OUTPUT);
digitalWrite(ledPin, HIGH);
delay(1000);
//Initialize communication with the clock
Wire.begin();
RTC.begin();
//RTC.adjust(DateTime(__DATE__, __TIME__)); //set RTC date and time to COMPILE time
//clear any pending alarms
RTC.armAlarm(1, false);
RTC.clearAlarm(1);
RTC.alarmInterrupt(1, false);
RTC.armAlarm(2, false);
RTC.clearAlarm(2);
RTC.alarmInterrupt(2, false);
//Set SQW pin to OFF (in my case it was set by default to 1Hz)
//The output of the DS3231 INT pin is connected to this pin
//It must be connected to arduino D2 pin for wake-up
RTC.writeSqwPinMode(DS3231_OFF);
//Set alarm1 every day at 18:33
RTC.setAlarm(ALM1_MATCH_HOURS, 55, 15, 0); //set your wake-up time here
RTC.alarmInterrupt(1, true);
}
//------------------------------------------------------------
//---------------------por mientras
void loop() {
//On first loop we enter the sleep mode
if (AlarmFlag == 0) {
attachInterrupt(0, wakeUp, LOW); //use interrupt 0 (pin 2) and run function wakeUp when pin 2 gets LOW
digitalWrite(ledPin, LOW); //switch-off the led for indicating that we enter the sleep mode
ledStatus = 0; //set the led status accordingly
LowPower.powerDown(SLEEP_FOREVER, ADC_OFF, BOD_OFF); //arduino enters sleep mode here
detachInterrupt(0); //execution resumes from here after wake-up
//When exiting the sleep mode we clear the alarm
RTC.armAlarm(1, false);
RTC.clearAlarm(1);
RTC.alarmInterrupt(1, false);
AlarmFlag++;
}
//////////////////////////////
//Aqui mi modificación.
/////////////////////////////
DateTime now2 = RTC.now();
if (now2.dayOfTheWeek() == 0)
{
for (int i=0; i<100; i++)
{
if (ledStatus == 0) {
ledStatus = 1;
digitalWrite(ledPin, HIGH);
}
else {
ledStatus = 0;
digitalWrite(ledPin, LOW);
}
delay(500);
}
}
AlarmFlag=0;
ledStatus = 1;
}
De antemano gracias.
